lib/tests/modules/declare-submodule-via-evalModules.nix


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{ lib, ... }: {
  options.submodule = lib.mkOption {
    inherit (lib.evalModules {
      modules = [
        {
          options.inner = lib.mkOption {
            type = lib.types.bool;
            default = false;
          };
        }
      ];
    }) type;
    default = {};
  };

  config.submodule = lib.mkMerge [
    ({ lib, ... }: {
      options.outer = lib.mkOption {
        type = lib.types.bool;
        default = false;
      };
    })
    {
      inner = true;
      outer = true;
    }
  ];
}